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Gemini Birthstone

Gemini Birthstones

Gemini is the third sign, the last month of spring. It's a mutable sign of the air element. Gemini starts on 20/21/22 May to 20 June. As signs do not start on the same day and time each year, if you were born on the cusp (beginning or end)of Gemini, please check your free birth chart to find the exact sign the Sun was in at birth. Gemini colours are mixed, hence Agate - which comes in many colours - is one of the Gemini Birthstones. Gemini is ruled by the planet Mercury.